KK> CONFIG *c;
 KK> if(!c)

 RS>    Is testing for a 'false pointer', ie, using the logical NOT operator 
 RS>    like you did above ANSI standard?  I know that different compilers 

Yup.  NULL is defined to be equal to (void*)0.  The bit pattern is not
necessarily all 0's, but it will compare equal to a constant of (void*)0.

 RS>    I'm just wondwering whether using this shortcut will compromise code 
 RS>    portability- if not, I'll save typing "!=NULL" from
now on.  :>

No compromise on portability, but, IMNSHO, a huge compromise in
readability.  I recommend only using if (!b) or if (b) if b is boolean, if
b is a pointer always compare against NULL, and if b is an integer, always
compare against zero.  Much more readable, IMO.  The generated code will
always be the same, but the written code is much easier to understand.


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